Just installed my 4930k and it made a big improvement. It looks like IB-E CPUs could be stronger when it comes to running 4 x 290Xs but I need time to test some more.
Can't wait for you to confirm this. I found a seller for a cheap 4930k.
When you confirm its because of the CPU, I pull the trigger.
![Cool :cool: :cool:](/styles/default/xenforo/vbSmilies/Normal/cool.gif)